U.S. Health Secretary Robert Kennedy Jr. is sticking his fingers into many pies. One of these contains psychedelics that are either synthetic or natural substances capable of producing changes in mood, cognitive processes and an altered perception of reality often accompanied by hallucinations. Kennedy believes that the U.S. government has hindered research into psychedelics which have been unjustifiably painted with a broad brush as being dangerous. These substances should be further explored, he maintains, because they have promise for clinical use in conditions such as post-traumatic stress disorder, depression sand opiate withdrawal.